US8349477B2 - Optical leak detection sensor - Google Patents
Optical leak detection sensor Download PDFInfo
- Publication number
- US8349477B2 US8349477B2 US12/790,749 US79074910A US8349477B2 US 8349477 B2 US8349477 B2 US 8349477B2 US 79074910 A US79074910 A US 79074910A US 8349477 B2 US8349477 B2 US 8349477B2
- Authority
- US
- United States
- Prior art keywords
- light
- fluid
- detector
- intensity
- leak
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related, expires
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/55—Specular reflectivity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/38—Investigating fluid-tightness of structures by using light
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/20—Indirect fuel cells, e.g. fuel cells with redox couple being irreversible
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
Description
I i A cos θi =I r A cos θr +I t A cos θt,
where A is the surface area of incidence, I is the radiant flux density of the incident, reflected, and transmitted light, and θ is the angle of incidence, reflectance, and transmittance. From this equation, the power at each of the four areas of incidence A1-A4 can be determined. As can be determined using the above equation in conjunction with
Claims (11)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/790,749 US8349477B2 (en) | 2009-05-28 | 2010-05-28 | Optical leak detection sensor |
US13/735,835 US8535821B2 (en) | 2009-05-28 | 2013-01-07 | Optical leak detection sensor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18207709P | 2009-05-28 | 2009-05-28 | |
US12/790,749 US8349477B2 (en) | 2009-05-28 | 2010-05-28 | Optical leak detection sensor |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/735,835 Division US8535821B2 (en) | 2009-05-28 | 2013-01-07 | Optical leak detection sensor |
Publications (2)
Publication Number | Publication Date |
---|---|
US20110081562A1 US20110081562A1 (en) | 2011-04-07 |
US8349477B2 true US8349477B2 (en) | 2013-01-08 |
Family
ID=43223404
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/790,749 Expired - Fee Related US8349477B2 (en) | 2009-05-28 | 2010-05-28 | Optical leak detection sensor |
US13/735,835 Expired - Fee Related US8535821B2 (en) | 2009-05-28 | 2013-01-07 | Optical leak detection sensor |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/735,835 Expired - Fee Related US8535821B2 (en) | 2009-05-28 | 2013-01-07 | Optical leak detection sensor |
Country Status (2)
Country | Link |
---|---|
US (2) | US8349477B2 (en) |
WO (1) | WO2010138949A2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US10396375B2 (en) | 2016-03-24 | 2019-08-27 | International Busniess Machines Corporation | System and method for condition monitoring of redox flow batteries using data analytics |
US10777836B1 (en) | 2019-05-20 | 2020-09-15 | Creek Channel Inc. | Fe—Cr redox flow battery systems including a balance arrangement and methods of manufacture and operation |
US11710844B2 (en) | 2020-11-16 | 2023-07-25 | Cougar Creek Technologies, Llc | Fe-Cr redox flow battery systems and methods utilizing chromium complexes with nitrogen-containing ligands |
Families Citing this family (16)
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US8785023B2 (en) * | 2008-07-07 | 2014-07-22 | Enervault Corparation | Cascade redox flow battery systems |
US7820321B2 (en) * | 2008-07-07 | 2010-10-26 | Enervault Corporation | Redox flow battery system for distributed energy storage |
US8587255B2 (en) * | 2009-05-28 | 2013-11-19 | Deeya Energy, Inc. | Control system for a flow cell battery |
US8174699B2 (en) * | 2010-07-22 | 2012-05-08 | Siemens Energy, Inc. | Fluid detection in turbine engine components |
US9281535B2 (en) | 2010-08-12 | 2016-03-08 | Imergy Power Systems, Inc. | System dongle |
US9106980B2 (en) | 2011-01-13 | 2015-08-11 | Imergy Power Systems, Inc. | Communications system |
US9269982B2 (en) | 2011-01-13 | 2016-02-23 | Imergy Power Systems, Inc. | Flow cell stack |
US8541121B2 (en) | 2011-01-13 | 2013-09-24 | Deeya Energy, Inc. | Quenching system |
US8980484B2 (en) | 2011-03-29 | 2015-03-17 | Enervault Corporation | Monitoring electrolyte concentrations in redox flow battery systems |
US8916281B2 (en) | 2011-03-29 | 2014-12-23 | Enervault Corporation | Rebalancing electrolytes in redox flow battery systems |
EP2899789B1 (en) * | 2012-09-18 | 2017-04-19 | Sumitomo Electric Industries, Ltd. | Redox flow battery |
CN103779588B (en) * | 2012-10-19 | 2017-05-03 | 住友电气工业株式会社 | Redox flow battery |
CA3047747A1 (en) | 2016-12-19 | 2018-06-28 | Vionx Energy Corporation | Systems and methods for electrolyte storage and detecting faults in flow batteries |
KR101965866B1 (en) * | 2017-08-02 | 2019-04-05 | 오토센서코리아(주) | Leak sensor using light source |
DE102019216257B4 (en) * | 2019-10-22 | 2023-10-12 | Volkswagen Aktiengesellschaft | Method for detecting an accumulation of liquid in a traction battery and traction battery |
WO2022248633A1 (en) | 2021-05-25 | 2022-12-01 | Invinity Energy Systems (Canada) Corporation | Redox flow battery system and method for improved electrolyte leak detection |
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- 2010-05-28 US US12/790,749 patent/US8349477B2/en not_active Expired - Fee Related
- 2010-05-28 WO PCT/US2010/036771 patent/WO2010138949A2/en active Application Filing
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2013
- 2013-01-07 US US13/735,835 patent/US8535821B2/en not_active Expired - Fee Related
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US8535821B2 (en) | 2013-09-17 |
US20130188190A1 (en) | 2013-07-25 |
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WO2010138949A3 (en) | 2011-02-03 |
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